You are looking at the HTML representation of the XML format.
HTML is good for debugging, but is unsuitable for application use.
Specify the format parameter to change the output format.
To see the non HTML representation of the XML format, set format=xml.
See the complete documentation, or API help for more information.
<?xml version="1.0"?>
      <img name="Engineer_aug.png" timestamp="2014-07-12T23:30:31Z" url="" descriptionurl="" ns="6" title="File:Engineer aug.png" />
      <img name="Engineer_rank.png" timestamp="2014-07-12T23:28:37Z" url="" descriptionurl="" ns="6" title="File:Engineer rank.png" />
      <img name="Engineer_repair.png" timestamp="2014-08-17T21:01:55Z" url="" descriptionurl="" ns="6" title="File:Engineer repair.png" />
      <img name="Ron_logo_small.png" timestamp="2014-06-24T17:47:26Z" url="" descriptionurl="" ns="6" title="File:Ron logo small.png" />
      <img name="Tib_72_4278190082.jpg" timestamp="2014-06-24T17:40:36Z" url="" descriptionurl="" ns="6" title="File:Tib 72 4278190082.jpg" />
      <img name="Tutorials.png" timestamp="2014-06-24T18:54:04Z" url="" descriptionurl="" ns="6" title="File:Tutorials.png" />